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US 11,378,481 B2Granted
Hydrant nozzle cap
AssigneeMueller International, LLC
InventorsDaryl Lee Gibson, William Mark O'Brien, Sebastien Perrier, Paul S. Gifford
Life of this patent
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Abstract
Example aspects of a nozzle cap for a fire hydrant and a method for manufacturing a nozzle cap to detect leaks in a fluid system are disclosed. The nozzle cap for a fire hydrant can comprise a cap body, the cap body comprising an inner housing and an outer housing, the outer housing defining a cavity; a vibration sensor received within the cavity and configured to detect leaks in a fluid system connected to the fire hydrant; and a metal insert contacting the vibration sensor and the inner housing.
Claims29
A nozzle cap for a fire hydrant comprising:
- a cap body, the cap body comprising an inner housing and an outer housing, the outer housing defining a cavity, the inner housing defining an upper wall and a metal post extending from the upper wall, a lower wall of the outer housing abutting the upper wall and the metal post extending into the outer housing at the lower wall;
- a vibration sensor received within the cavity and configured to detect leaks in a fluid system connected to the fire hydrant;
- and
- a metal insert disposed within the outer housing, the metal insert contacting both of the vibration sensor and the metal post of the inner housing such that the vibration sensor is in metal-to-metal contact with the metal post.
1 more element
A nozzle cap for a fire hydrant comprising:
- a cap cover comprising a metal material;
- a cap body defining a cap axis, the cap body comprising:
- an inner housing comprising a metal material;
- and
- an outer housing comprising a non-metal material, the outer housing disposed axially between the inner housing and the cap cover, the outer housing comprising a bottom wall and a substantially circumferential wall extending from the bottom wall, the substantially circumferential wall and the bottom wall together defining a cavity, the bottom wall confronting the inner housing;
- and
- a vibration sensor received within the cavity and configured to detect leaks in a fluid system connected to the fire hydrant.
4 more elements
A modular nozzle cap for a fire hydrant comprising:
- a cap cover defining a cap fastener hole;
- a cap body cap body defining a cap axis, the cap body comprising:
- an inner housing configured to engage the fire hydrant, the inner housing defining an inner fastener hole;
- and
- an outer module disposed axially between and removably received between the inner housing and the cap cover, the outer module defining an outer fastener hole;
- and
- a fastener engaging each of the cap fastener hole, inner fastener hole, and outer fastener hole to removably couple the outer module to the cap cover and the inner housing.
4 more elements
A nozzle cap for a fire hydrant comprising:
- a cap cover comprising a metal material;
- a cap body comprising:
- an inner housing comprising a metal material;
- an outer housing comprising a non-metal material, the outer housing received between the inner housing and the cap cover, the outer housing defining a cavity and an outer fastener hole;
- a housing lid ultrasonically welded to the outer housing and configured to enclose the cavity, the housing lid defining a lid fastener hole;
- and
- a fastener extending through the outer fastener hole and the lid fastener hole;
- and
- a vibration sensor received within the cavity and configured to detect leaks in a fluid system connected to the fire hydrant;
- wherein the outer housing further comprises a locating pin configured to engage a recess formed in the housing lid to align the outer fastener hole of the outer housing with the lid fastener hole of the housing lid;
- wherein the nozzle cap further comprises a cap cover defining a recess and a cap fastener hole;
- and
- wherein the locating pin extends through the recess of the housing lid and engages the recess of the cap cover to align the cap fastener hole with the outer fastener hole and the lid fastener hole.
10 more elements
A nozzle cap for a fire hydrant comprising:
- a cap cover comprising a metal material;
- a cap body comprising:
- an inner housing comprising a metal material, the inner housing further comprising a membrane, the membrane configured to allow air to pass therethrough and to prohibit liquid from passing therethrough, the membrane mounted to an inner wall of the cap body;
- and
- an outer housing comprising a non-metal material, the outer housing received between the inner housing and the cap cover, the outer housing defining a cavity;
- and
- a vibration sensor received within the cavity and configured to detect leaks in a fluid system connected to the fire hydrant.
4 more elements
A nozzle cap for a fire hydrant comprising:
- a cap cover comprising a metal material;
- a cap body defining a cap axis, the cap body comprising:
- an inner housing comprising a metal material;
- and
- an outer housing comprising a non-metal material, the outer housing received between the inner housing and the cap cover, the outer housing defining a cavity;
- and
- a vibration sensor received within the cavity and configured to detect leaks in a fluid system connected to the fire hydrant, the vibration sensor defining a sensor axis, wherein the cap axis extends perpendicular to the sensor axis.
4 more elements
Dependencies are inferred from the claim text.